Lawrence Hall of Science Public science museum and research center for K-12 education at the University of California, Berkeley. LHS offers hands-on science exhibits, discovery laboratories, computer labs, planetarium shows, after-school classes and summer camps, family wo
http://www.lhs.berkeley.edu/
Science Center of Iowa Features interactive exhibits, programs and a planetarium. Permanent exhibits include Hubble Space Telescope Display and The Foucault Pendulum. Located in Des Moines, Iowa.
http://www.sciowa.org
The Exploratorium Hands-on museum of science, art, and human perception in San Francisco. Site provides interactive online exhibits and exhibitions, activities, science news, and publications, general information about the museum.
http://www.exploratorium.edu/